New Developments in HEC Programs for Flood Control

Since the Hydrologic Engineering Center (HEC) started in 1964, the evolution has been toward packaged programs that perform a variety of computation options. Two examples are the flood runoff computation options of the HEC-1 Flood Hydrograph Package (HEC,1981) and the variety of capabilities in the HEC-2 Water Surface Profile Program (HEC,1982). The increased speed and memory available on the microcomputer makes these programs practical to use in this environment. The Center's current program development for flood control, with an emphasis on water surface profile computation, is presented.